upgrade pom version to 0.2.0-SNAPSHOT
.abat-automerge: run check-all
java_gen: Declare fragmentation flags in OFConfigFlags as MaskedEnumGroup
prerequisite: declare safe OFValueType utilization
IPAddresses: fix accidental use of byte[].toString()
java-gen/pre-written: remove unused class
HexString: fix (theoretical) FindBugs warning
java_gen: add MaskedEnumGroup fro OFTableConfig.TABLE_MISS

remove unused var
Merge into master from pull request #72:
Support for OFBufferId and enum field types for OFPortDesc and OFFeaturesReply (https://github.com/floodlight/loxigen/pull/72)
Merge into master from pull request #73:
upgrade pom version to 0.2.0-SNAPSHOT + a few snapshots (https://github.com/floodlight/loxigen/pull/73)
LOXI-45 Create common base interface for IPv[46]Address and IPv[46]Address with Mask
Merge branch 'master' of github.com:floodlight/loxigen

Conflicts:
	java_gen/pre-written/src/main/java/org/projectfloodlight/openflow/protocol/match/Prerequisite.java
Moved IPVersion enum to top level
Merge into master from pull request #74:
LOXI-45 Create common base interface for IPv[46]Address and IPv[46]Address with Mask (https://github.com/floodlight/loxigen/pull/74)
Hierarchical error messages plus some more tweaks

- hierarchical error messages for different error types
- renamed ofp_stats_types to ofp_stats_type
- renamed OFP_VENDOR to OFP_EXPERIMENTER in OF 1.0 input file
- use ofp_capabilities enum in of_features_reply
- use boolean type for l2_table_enable field in of_bsn_set_l2_table_(request|reply)
- return Set<OFActionType> for actions field in of_features_reply
- added DatapathId class that's returned for datapath_id field of of_features_reply
- removed unused read/write routines from OFBufferId
- added getOFVersioon method to factory classes/interfaces
- renamed OFPT_MULTIPART_(REQUEST|REPLY) to OFPT_STATS_(REQUEST|REPLY) in OF 1.3 input file
- renamed ofp_multipart_types to ofp_stats_type in OF 1.3 input file
- tweaked python backend to work with consistent use of of_stats_xyz vs. of_multipart_xyz in 1.3
Merge branch 'master' of github.com:floodlight/loxigen